<?php
namespace app\common\tool;

class Tool {

    public static function changeArrayKey(&$arr,$key='id'){
        $newArray = [];
        foreach($arr as $k => $v){
            $newArray[$v[$key]] = $v;
        }
        return $newArray;
    }


    /**
     * 生成无限级的树 应用上最多只要三级
     * @param $menusById
     * @param $pid
     * @param string $pidKey
     * @param string $idKey
     * @return array
     */
    public static function findSub($menusById,$pid,$pidKey='pid',$idKey="id"){
        $tree = [];
        foreach($menusById as $val){
            if($val[$pidKey] == $pid){
                $tmpVal = $val;
                $tmpPid = $val[$idKey];
                unset($val);
                $tmpVal['sub'] = self::findSub($menusById,$tmpPid);
                array_push($tree,$tmpVal);
            }
        }
        return $tree;
    }


    /**
     * 产品详情页面的模板名称转换
     */
    public  function transProductTpl($tpl){
        $tplData = ['imgleft'=>'图片居左', 'imgright'=>'图片居右', 'imgcenter'=>'图片居中', 'imgback'=>'图片背景文字居中','imgbackleft'=>'图片背景文字靠左','imgbackright'=>'图片背景文字靠右'];
        return isset($tplData[$tpl])?$tplData[$tpl]:'未定义模板';
    }

    public function isMobile(){
        $_SERVER['ALL_HTTP'] = isset($_SERVER['ALL_HTTP']) ? $_SERVER['ALL_HTTP'] : '';
        $mobile_browser = '0';
        if(preg_match('/(up.browser|up.link|mmp|symbian|smartphone|midp|wap|phone|iphone|ipad|ipod|android|xoom)/i', strtolower($_SERVER['HTTP_USER_AGENT'])))
            $mobile_browser++;
        if((isset($_SERVER['HTTP_ACCEPT'])) and (strpos(strtolower($_SERVER['HTTP_ACCEPT']),'application/vnd.wap.xhtml+xml') !== false))
            $mobile_browser++;
        if(isset($_SERVER['HTTP_X_WAP_PROFILE']))
            $mobile_browser++;
        if(isset($_SERVER['HTTP_PROFILE']))
            $mobile_browser++;
        $mobile_ua = strtolower(substr($_SERVER['HTTP_USER_AGENT'],0,4));
        $mobile_agents = array(
            'w3c ','acs-','alav','alca','amoi','audi','avan','benq','bird','blac',
            'blaz','brew','cell','cldc','cmd-','dang','doco','eric','hipt','inno',
            'ipaq','java','jigs','kddi','keji','leno','lg-c','lg-d','lg-g','lge-',
            'maui','maxo','midp','mits','mmef','mobi','mot-','moto','mwbp','nec-',
            'newt','noki','oper','palm','pana','pant','phil','play','port','prox',
            'qwap','sage','sams','sany','sch-','sec-','send','seri','sgh-','shar',
            'sie-','siem','smal','smar','sony','sph-','symb','t-mo','teli','tim-',
            'tosh','tsm-','upg1','upsi','vk-v','voda','wap-','wapa','wapi','wapp',
            'wapr','webc','winw','winw','xda','xda-'
        );
        if(in_array($mobile_ua, $mobile_agents))
            $mobile_browser++;
        if(strpos(strtolower($_SERVER['ALL_HTTP']), 'operamini') !== false)
            $mobile_browser++;
        // Pre-final check to reset everything if the user is on Windows
        if(strpos(strtolower($_SERVER['HTTP_USER_AGENT']), 'windows') !== false)
            $mobile_browser=0;
        // But WP7 is also Windows, with a slightly different characteristic
        if(strpos(strtolower($_SERVER['HTTP_USER_AGENT']), 'windows phone') !== false)
            $mobile_browser++;
        if($mobile_browser>0)
            return true;
        else
            return false;
    }
}